2017.03 Amino Acids (Tryptophan) - Amino-02
2017.03 (JULY 2018) Amino-02 AOAC_TRP_MLT_- AOAC_BlindDup_50350017W1
FOR ERP USE ONLY DO NOT DISTRIBUTE
AOAC International Interlaboratory Study Workbook
Version:
2.1
Blind (Unpaired) Replicates Study Reported Values
Seq.
Item
Symbol
Value
Study name: Study date: Sample ID:
AOAC 2017.03 Determination of L-Tryptophan
24-Aug-2017
50350017W1 - URTF231/WKHN288
1 Total number of laboratories 2 Total number of replicates
p
10 20
Sum(n(L)) XBARBAR
3 Overall mean of all data (grand mean) 4 Repeatability standard deviation 5 Reproducibility standard deviation 6 Repeatability relative standard deviation 7 Reproducibility relative standard deviation
22.5927 0.5034 0.7963
s(r) s(R)
RSD(r) RSD(R)
2.23 3.52
8 HORRAT value
0.50
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